Chapter Summary

Text Summary

Free-Format Data

External files can contain raw data that is free-format. That is, the data is not arranged in fixed fields. The fields can be separated by blanks, or by some other delimiter, such as commas.

Using List Input

Free-format data can easily be read with list input because you do not need to specify column locations of the data. You simply list the variable names in the same order as the corresponding raw data fields. You must distinguish character variables from numeric variables by using the dollar ($) sign.
When characters other than blanks are used to separate the data values, you can specify the field delimiter by using the DLM= option in the INFILE statement.
You can also specify a range ...

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